Manganocalcite Cléophane Bulgarie

Manganocalcite coated with green blende (cleophane) from the Zlatograd mine in Bulgaria, year 2010.

Dimensions of the stone: L: 72mm x W: 75mm x Thickness: 38mm x Weight: 247g.

Manganocalcite is a variety of calcite that owes its pink colour to the presence of manganese.

Manganocalcite's chemical composition: Manganese hydroxide MnO(OH) and calcium carbonate CaCO3.

Its hardness is 3-4 on the Mohs scale.  Colour: pale pink.  

Cleaning:

Warm soapy water, cloth or soft bristle brush due to its low hardness.